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Submission #636270

# Submission time Handle Problem Language Result Execution time Memory
636270 2022-08-28T16:58:04 Z jame0313 Tree Rotations (POI11_rot) C++17
36 / 100
 321 ms 65536 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
using ld = long double;
using pll = pair<ll, ll>;
// and so on
int arr[400001];
int in[400001];
int out[400001];
vector<vector<int> > mp;
vector<int> lst[400001];
int id = -1;
int fnd(int idx, int v){
    return upper_bound(lst[idx].begin(),lst[idx].end(),v) - lst[idx].begin();
}
int parse(int x){
    int c;
    cin>>c;
    in[x] = x;
    if(c==0){
        int l = parse(++id);
        int r = parse(++id);
        mp[x].push_back(l);
        mp[x].push_back(r);
    }
    else{
        arr[x] = c;
    }
    out[x] = id;
    return in[x];
}
ll sol(int x) {
    ll ret = 0;
    if (arr[x] == 0) {
        int a = mp[x][0];
        int b = mp[x][1];
        ret += sol(a) + sol(b);
        if(out[a] - in[a] < out[b] - in[b]) swap(a, b);
        ll acnt = 0, bcnt = 0;
        int zero_cnt = fnd(a, 0);
        int siz = lst[a].size();
        for(int i=in[b];i<=out[b];i++){
            if(!arr[i]) continue;
            int cnt = fnd(a,arr[i]) - zero_cnt;
            acnt += cnt;
            bcnt += siz - cnt;
        }
        ret += min(acnt, bcnt);
        lst[x] = lst[a];
        lst[x].insert(lst[x].end(),lst[b].begin(),lst[b].end());
        sort(lst[x].begin(),lst[x].end());
        lst[a].clear();
        lst[b].clear();
        return ret;

    } else {
        lst[x] = {arr[x]};
        return 0;
    }
}
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int N;
    cin >> N;
    mp.resize(2*N+1);
    int r = parse(++id);
    cout<<sol(r);
    
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9684 KB Output is correct
2 Correct 6 ms 9684 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 5 ms 9684 KB Output is correct
5 Correct 5 ms 9684 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 6 ms 9684 KB Output is correct
4 Correct 5 ms 9684 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9940 KB Output is correct
2 Correct 6 ms 9936 KB Output is correct
3 Correct 6 ms 9808 KB Output is correct
4 Correct 10 ms 11220 KB Output is correct

Subtask #4
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 184 ms 44532 KB Output is correct
2 Correct 10 ms 11108 KB Output is correct
3 Correct 272 ms 49764 KB Output is correct
4 Correct 127 ms 59084 KB Output is correct

Subtask #5
0 / 9.0

# Verdict Execution time Memory Grader output
1 Runtime error 282 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #6
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 87 ms 26868 KB Output is correct
2 Runtime error 127 ms 65536 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #7
0 / 9.0

# Verdict Execution time Memory Grader output
1 Runtime error 198 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #8
0 / 9.0

# Verdict Execution time Memory Grader output
1 Runtime error 216 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #9
0 / 9.0

# Verdict Execution time Memory Grader output
1 Runtime error 321 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #10
0 / 9.0

# Verdict Execution time Memory Grader output
1 Runtime error 215 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #11
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 209 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -